1/*
2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/* @test
25 * @bug 6567433
26 *
27 * @summary  JComboBox.updateUI() invokes updateUI() on its cellrenderer via
28 * SwingUtilities.updateComponentTreeUI().
29 * If the cellrenderer is a parent of this JComboBox the method recurses
30 * endless.
31 * This test tests that the fix is effective in avoiding recursion.
32 *
33 * @run main/othervm UpdateUIRecursionTest
34 */
35
36import java.awt.BorderLayout;
37import java.awt.Component;
38import javax.swing.DefaultListCellRenderer;
39import javax.swing.JComboBox;
40import javax.swing.JFrame;
41import javax.swing.JList;
42import javax.swing.JScrollPane;
43import javax.swing.ListCellRenderer;
44import javax.swing.SwingUtilities;
45
46public class UpdateUIRecursionTest extends JFrame implements ListCellRenderer {
47    JComboBox combo;
48    DefaultListCellRenderer renderer;
49
50    public UpdateUIRecursionTest() {
51        super("UpdateUIRecursionTest");
52        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
53        setSize(400, 400);
54
55        String[] listData = {
56            "First", "Second", "Third", "Fourth", "Fifth", "Sixth"
57        };
58
59        combo = new JComboBox(listData);
60        combo.setRenderer(this);
61        renderer = new DefaultListCellRenderer();
62        getContentPane().add(new JScrollPane(combo), BorderLayout.CENTER);
63
64        setVisible(true);
65    }
66
67    public static void main(String[] args) throws Exception {
68
69        SwingUtilities.invokeAndWait(new Runnable() {
70
71            @Override
72            public void run() {
73                UpdateUIRecursionTest obj = new UpdateUIRecursionTest();
74
75                obj.test();
76
77                obj.disposeUI();
78            }
79        });
80    }
81
82    public void test() {
83        combo.updateUI();
84    }
85
86    public void disposeUI() {
87        setVisible(false);
88        dispose();
89    }
90
91    public Component getListCellRendererComponent(JList list, Object value,
92            int index, boolean isSelected, boolean cellHasFocus)
93    {
94        return renderer.getListCellRendererComponent(list, value, index,
95                                                     isSelected, cellHasFocus);
96    }
97}
98
99